Oliver highly recommend to John (11/20/15) that Craig's staff watch these two Cornell IT Security videos:
Phishing: Don't fall for it
You can check suspect email against the examples IT Security maintains at their phishing page:
Conversely, here are emails which may look like scams or phishing but are in fact verified Cornell communications:
Learn not to get scammed
To help protect yourself and reduce you worrying if a suspect email is indeed a scam attempt, please review CIT's page on how to spot such fraudulent emails:
See also